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Summary of Significant Accounting Policies - TPG Investment in Company (Details) - USD ($)
Jun. 07, 2018
Jun. 30, 2018
Dec. 31, 2017
Merger Agreement with Taylor Morrison Home Corporation      
Common stock, par value per share   $ 1 $ 1
Percentage of merger consideration paid in cash 58.80%    
Percentage of merger consideration paid in shares 41.20%    
Termination fee $ 18,472,000    
AV Homes Inc [Member]      
Merger Agreement with Taylor Morrison Home Corporation      
Common stock, par value per share $ 1.00    
Taylor Morrision Home Corporation [Member]      
Merger Agreement with Taylor Morrison Home Corporation      
Common stock, par value per share $ 0.00001    
Taylor Morrision Home Corporation [Member] | Scenario A      
Merger Agreement with Taylor Morrison Home Corporation      
Number of shares to be received in exchange for a single share 0.9793    
Taylor Morrision Home Corporation [Member] | Scenario B      
Merger Agreement with Taylor Morrison Home Corporation      
Price per share $ 21.50    
Taylor Morrision Home Corporation [Member] | Scenario C      
Merger Agreement with Taylor Morrison Home Corporation      
Number of shares to be received in exchange for a single share 0.4034    
Price per share $ 12.64